Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN







Fuel pump problem 99 Chevy Tahoe 5.7


  Email This Post



Altrescue
New User

Sep 3, 2011, 4:12 PM

Post #1 of 4 (2248 views)
Shortcut
Fuel pump problem 99 Chevy Tahoe 5.7 Sign In

I had to replace the heads on my 5.7 99 Tahoe and after putting the engine back together the fuel pump will not turn on. The fuel pump worked fine before the repair and if I jump the relay the fuel pump will turn on. The fuel pressure is good with it turns on, I have checked all the ground wires and they all seem to be hooked up. I cant figure it out, any help?


Altrescue
New User

Sep 3, 2011, 4:33 PM

Post #2 of 4 (2232 views)
Shortcut
Re: Fuel pump problem 99 Chevy Tahoe 5.7 [In reply to] Sign In

I forgot to mention that I replaced the relay with a new one and it still wont start


Discretesignals
Veteran / Moderator


Sep 3, 2011, 5:13 PM

Post #3 of 4 (2225 views)
Shortcut
Re: Fuel pump problem 99 Chevy Tahoe 5.7 [In reply to] Sign In

If you bypass the fuel pump relay and have the pump running, will the engine start?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Hammer Time
Ultimate Carjunky / Moderator


Sep 3, 2011, 5:19 PM

Post #4 of 4 (2222 views)
Shortcut
Re: Fuel pump problem 99 Chevy Tahoe 5.7 [In reply to] Sign In

The PCM supplies trigger power to the relay on the Dk green with white wire. Check to see if you are getting that during the first 2 seconds of "key on" and once it starts cranking.
You should also check for spark when cranking




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.





Fuel pump problem 99 Chevy Tahoe 5.7


  Email This Post
 
 






Latest Forum Post
my car started, hard starting 6 mos ago, then wouldn't start at all,the x's frie...
2000 dodge caravan 3.0 150,000 miles. I replaced a friends timing belt and wate...
The "clicking" noise happens when the turn signal is not activated
had problem with break light staying on. tapped the switch on the master cylinde...
I JUST GOT A CHEVY SILVERADO 2500 VORTEC ENGINE SIZE 3500 WHEN IM DRIVING AND PI...
Hello, I have a great looking 1985 s10 pickup 4.3 carburated with 80,000 miles....

Feed Button


Used Car Search
Used Car Price Ranges:
Under $5,000
$20,000
$35,000

$10,000
$25,000
$40,000
$15,000
$30,000
$45,000
Over $45,000
Search used Cars By Manufacturers:
Used Acura
Used Audi
Used BMW
Used Buick
Used Cadillac
Used Chevrolet
Used Chrysler
Used Dodge
Used FIAT
Used Ford
Used GMC

Used Honda
Used Hyundai
Used Infiniti
Used Jaguar
Used Jeep
Used Kia
Used Land Rover
Used Lexus
Used Lincoln
Used Mazda
Used Mercedes-Benz

Used MINI
Used Mitsubishi
Used Nissan
Used Porsche
Used Saab
Used Scion
Used Subaru
Used Suzuki
Used Toyota
Used Volkswagon
Used Volvo
2010 Honda Civic
$15,770
2004 Jeep
$8,991
2012 Mustang
$22,990
1997 Honda Cr-V
$4,490
2010 Toyota Prius
$17,496
2010 BMW 328
$26,980




Automotive Forum Categories
Automotive Repair
Auto Body Repair and Refinishing
AC Auto Repair Help Forum
Automotive Wiring and Electrical

Auto Insurance and Car Financing
Automotive World
Brake Systems
Car Stereo Repair Advice
Car Troubleshooting
Engine and Car Noises
Engine Fault Codes
Engine Troubleshooting
Exhaust System Repair

Steering and Suspension
Tricks of the Trade
General Discussions
Car Shows and Events
The Bargin Bin
Motor Vehicle Inspection
Car Care Tips
Traffic Ticket Help
Car Racing

Gasoline, Motor Oils, Concept Cars
Remote Control Cars and Vehicles
Truck Repair
Truck Repair Advice


Truck Engine Repair
Truck Suspension Repair
Motorcycle Repair
Motorcycle and ATV Repairs

Motorcycle Body Repair
Motorcycle Clutch Repair
Motorcycle Engine Repair
Motorcycle Seat Repair
Car Forum Posts - Sitemap


Search for (options) Privacy